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Release 425 (24 Aug 2023)

General​

  • Improve performance of GROUP BY. (#18106)
  • Fix incorrect reporting of cumulative memory usage. (#18714)

BlackHole connector​

  • Remove support for materialized views. (#18628)

Delta Lake connector​

  • Add support for check constraints in MERGE statements. (#15411)
  • Improve performance when statistics are missing from the transaction log. (#16743)
  • Improve memory usage accounting of the Parquet writer. (#18756)
  • Improve performance of DELETE statements when they delete the whole table or when the filters only apply to partition columns. (#18332 )

Hive connector​

  • Add support for CASCADE option in DROP SCHEMA statements. (#18320)
  • Create a new directory if the specified external location for a new table does not exist. (#17920)
  • Improve memory usage accounting of the Parquet writer. (#18756)
  • Improve performance of writing to JSON files. (#18683)

Iceberg connector​

  • Improve memory usage accounting of the Parquet writer. (#18756)

Kudu connector​

  • Add support for CASCADE option in DROP SCHEMA statements. (#18629)

MongoDB connector​

  • Add support for the Decimal128 MongoDB type. (#18722)
  • Add support for CASCADE option in DROP SCHEMA statements. (#18629)
  • Fix query failure when reading the value of -0 as a decimal type. (#18777)